comedy central stephen colbert testified before a house judiciary committee on immigration. he spent one day working on a farm in upstate new york and he was called to testify on whether or not undocumented farm workers ought to be offered a path to citizenship. republican cans were not amused in would you call yourself an expert witness. >> i believe one day of me studying something makes me an expert. >> this is harder work. >> certainly harder than this. >> you don't want to return to it. >> i don't want to even watch green acres anymore. >> reporter: okay. maybe a little amused. colbert was recruited by the farm workers union as part of the take our jobs campaign. it says his attention has brought 3 million people to its website. >>> colbert was invited to testify at the hearing and it's not unusual for that to happen. sometimes senator and members of congress ask high profile folks to come in and testify because they want to draw attention to an issue that otherwise might be overlooked but colbert came in character which has me wondering if it was a worthy endeavor. nev